%0 Journal Article %A V. E. Fedorov %T Smoothness of Solutions of Linear Equations of Sobolev Type %J Differencialʹnye uravneniâ %D 2001 %P 1646-1649 %V 37 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2001_37_12_a8/ %G ru %F DE_2001_37_12_a8